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Sanyo C0951 User Manual

Page 46

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43

8-4. Outdoor Fan Speed Control (CL

ЧЧЧЧ

models only)

Low ambient fan speed control

This function protects the compressor from being damaged due to flowback of the liquid refrigerant to the

compressor when the outdoor temperature is very low.

When the air temp. thermistor (TH) on the outdoor units detects a change in temperature, the controller on

the electrical component box activates to control the fanspeed automatically.

If the outdoor temperature falls below 57°F, the fan speed switches to MED.

If the outdoor temperature falls below 30°F, the fan speed switches to LOW.

*1 Regardless of outdoor temperature, outdoor fan motor operates at first at HIGH speed for

23 ± 5 seconds to give the motor an initial boost.

*2 When the fan speed switches, the controller terminal’s location where line voltage comes

out (

) shifts accordingly.

57

°

F

30

°

F

Outdoor

temperature

Fan speed

*

1

Fan motor output

*

2

(Line voltage 115V or 230V)

HIGH

MEDIUM

LOW

(BLU–GRY) or (WHT–GRY)

(VLT–GRY)

(YEL–GRY)

000-215 SM (1-56) 7/5/00 2:49 PM Page 43

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